Abstract
The paper considers a hardware-software complex for research of characteristics of accuracy and noise immunity of a near navigation system based on pseudolites. The complex is implemented on the basis of the “National Instruments” hardware platform and “LabView” coding environment. It provides a simulated navigation field, the analysis of the received signals, the determination of the errors of measurement of navigation parameters for pseudolites signals, comparing the measured error with the characteristics of a standard GNSS receiver.
Highlights
A near navigation system is widely adopted technologies based on the use of pseudolites [1,2,3]
The measurement of navigation parameters is carried out basing on signals pseudolites
Despite all the advantages of navigation systems based on pseudolites, there are a number of unsolved problems [4,5,6,7,8]: 1. An increased pseudosatellite signal level requires an enhanced dynamic range of the navigation receiver
Summary
A near navigation system is widely adopted technologies based on the use of pseudolites [1,2,3]. Weak electromagnetic compatibility of signals pseudolites and navigation satellites Solving these problems requires further theoretical and experimental studies. This leads to the creation of the hardware-software complex - an experimental prototype of the near navigation system based on pseudolites. The structure of the hardwaresoftware complex should include pseudolites prototypes for forming the navigation field with the specified parameters The main task of the hardware-software complex is the formation of an artificial navigation field in a given region of space This task is performed by four pseudolites layouts that emit navigation signals of the required structure. The exact coordinates of the pseudolite antenna are included in its navigation message and are used in the solution of the navigation task in the receiver
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